/*

    File:   main.c

    Version:    1.0

    Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.

        ("Apple") in consideration of your agreement to the following terms, and your

        use, installation, modification or redistribution of this Apple software

        constitutes acceptance of these terms.  If you do not agree with these terms,

        please do not use, install, modify or redistribute this Apple software.

        In consideration of your agreement to abide by the following terms, and subject

        to these terms, Apple grants you a personal, non-exclusive license, under Apple’s

        copyrights in this original Apple software (the "Apple Software"), to use,

        reproduce, modify and redistribute the Apple Software, with or without

        modifications, in source and/or binary forms; provided that if you redistribute

        the Apple Software in its entirety and without modifications, you must retain

        this notice and the following text and disclaimers in all such redistributions of

        the Apple Software.  Neither the name, trademarks, service marks or logos of

        Apple Computer, Inc. may be used to endorse or promote products derived from the

        Apple Software without specific prior written permission from Apple.  Except as

        expressly stated in this notice, no other rights or licenses, express or implied,

        are granted by Apple herein, including but not limited to any patent rights that

        may be infringed by your derivative works or by other works in which the Apple

        Software may be incorporated.

        The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

        WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

        WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

        PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

        COMBINATION WITH YOUR PRODUCTS.

        IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

        CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

        GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

        ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION

        OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT

        (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN

        ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    Copyright © 2005 Apple Computer, Inc., All Rights Reserved

*/

#include <Carbon/Carbon.h>

#include "MouseTrackingView.h"

//-----------------------------------------------------------------------------------

CGImageRef LoadImageFromMainBundle(CFStringRef imageName)

{

    CGImageRef image = NULL;

    CFURLRef url = CFBundleCopyResourceURL(CFBundleGetMainBundle(), imageName, NULL, NULL);

    if (url != NULL)

    {

    CGDataProviderRef provider = CGDataProviderCreateWithURL(url);

    image = CGImageCreateWithPNGDataProvider(provider, NULL, false, kCGRenderingIntentDefault);

    CGDataProviderRelease( provider );

    CFRelease( url );

    }

    return image;

}

//-----------------------------------------------------------------------------------

static OSStatus ResizeHandler(EventHandlerCallRef inRef, EventRef inEvent, void* inUserData)

{

    WindowRef   w  = (WindowRef)inUserData;

    OSStatus    err = eventNotHandledErr;

    UInt32  attributes = 0;

    GetEventParameter(inEvent, kEventParamAttributes, typeUInt32, NULL, sizeof(UInt32), NULL, &attributes);

    if ( attributes & kWindowBoundsChangeSizeChanged )  // don't care about kWindowBoundsChangeOriginChanged

    {

    HIViewRef   contentView, canvasView;

    HIRect      bounds;

    HIViewID    mtViewID = { kMTViewSignature, 0 };

    HIViewFindByID(HIViewGetRoot(w), kHIViewWindowContentID, &contentView);

    HIViewGetBounds(contentView, &bounds);

    err = GetControlByID(w, &mtViewID, &canvasView);

    if (err == noErr)

        HIViewSetFrame(canvasView, &bounds );

    }

    return err;

}

//-----------------------------------------------

static Boolean SystemVersionRequired(int version)

{

    SInt32 result;

    Gestalt( gestaltSystemVersion, &result );

    return (result >= version);

}

//-----------------------------------------------------------------------------------

int main(int argc, char* argv[])

{

    IBNibRef        nibRef;

    WindowRef       window;

    OSStatus        err;

    if (!SystemVersionRequired(0x1040))

    {

    DialogRef theAlert;

    CreateStandardAlert(kAlertStopAlert, CFSTR("Need 10.4 or later!"), NULL, NULL, &theAlert);

    RunStandardAlert(theAlert, NULL, NULL);

    return 0;

    }

    // Create a Nib reference passing the name of the nib file (without the .nib extension)

    // CreateNibReference only searches into the application bundle.

    err = CreateNibReference(CFSTR("main"), &nibRef);

    require_noerr( err, CantGetNibRef );

    // Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar

    // object. This name is set in InterfaceBuilder when the nib is created.

    err = SetMenuBarFromNib(nibRef, CFSTR("MenuBar"));

    require_noerr( err, CantSetMenuBar );

    // Then create a window. "MainWindow" is the name of the window object. This name is set in 

    // InterfaceBuilder when the nib is created.

    err = CreateWindowFromNib(nibRef, CFSTR("MainWindow"), &window);

    require_noerr( err, CantCreateWindow );

    // We don't need the nib reference anymore.

    DisposeNibReference(nibRef);

    // Create our "MouseTrackingView" and make it a subview of the window's contentView.

    // We could use the contentView itself, but it's a more flexible approach for future

    // enhancements of this demo to embed the view in the contentView.

    HIViewRef contentView;

    HIViewFindByID( HIViewGetRoot(window), kHIViewWindowContentID, &contentView );

    HIViewID mtViewID = { kMTViewSignature, 0 };

    Rect    viewBounds;

    GetWindowPortBounds(window, &viewBounds);

    err = CreateMouseTrackingView(contentView, &viewBounds, &mtViewID);

    require_noerr( err, CantCreateMTView );

    // The window is resizeable, and we want the embedded view to get resized, too

    EventTypeSpec   event = {kEventClassWindow, kEventWindowBoundsChanged};

    err = InstallEventHandler(GetWindowEventTarget(window), ResizeHandler, 1, &event, window, NULL);

    require_noerr( err, CantInstallHandler );

    // The window was created hidden so show it.

    ShowWindow( window );

    // Call the event loop

    RunApplicationEventLoop();

CantInstallHandler:

CantCreateMTView:

CantCreateWindow:

CantSetMenuBar:

CantGetNibRef:

    return err;

}